Introduction to BlueJ
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Transcript Introduction to BlueJ
BlueJ: A Very Quick Introduction
26-Jul-16
BlueJ
BlueJ is an IDE (Integrated Development Environment).
It includes
an editor, which you use to write your programs
a debugger, to help you find your mistakes
a viewer, to see the parts of your program
an easy way to run Java programs
an easy way to view documentation
Open BlueJ, choose New Project
Name the project, click Create
Create and name a new Class or Applet
The name of the
class should begin
with a capital letter
Double-click the new class to edit it
The stripes show that the
class "Drawing" is not
compiled (ready to run)
Edit your class, then Compile it
You must compile before you can run.
BlueJ starts you with a
simple class or a simple
applet. You can modify
what BlueJ gives you, or
just replace it with your
own program.
If it's an applet: Right-click the class
and choose Run Applet
If applet: choose how to run it, and
what size it should be
Here's the running applet!
If application: right-click and choose
void main(args)
Application: Just click Ok
Application results
Final notes
You don't have to Save your work—BlueJ does that
automatically for you when you compile
If you quit BlueJ and come back later, use Open
Project to continue where you left off
This quick introduction does not replace working
through the tutorial!
The End